Year	Number
1996	3
1998	3
2000	3
2002	3
2003	4
2004	7
2005	8
2006	12
2007	12
2008	13
2009	13
2010	13
2011	14
2012	15
2013	15
2014	14
2015	14
2016	14
2017	14
2018	14
2019	15
2020	13
2021	12
2022	12